Looks like coreboot (or FSP) is overwriting this memory with some trampoline code.On 11/19/14 11:36 AM, Gailu Singh wrote:
I am using Baytrail SoC board (Bayleybay CRB) and testing suspend/resume from Linux (kernel 3.10). I can suspend with pm-suspend and resume with power button; however after resuming I get following logs in Linux
Corrupted low memory at c0001004 (1004 phys) = 0008eaea
Corrupted low memory at c0001008 (1008 phys) = b0606600
Corrupted low memory at c00018fc (18fc phys) = 000008ea
This seems to be caused by coreboot as I do not see these logs if I use BIOS instead of coreboot.
Is it true that during resume coreboot uses RAM portion already mapped by Linux and thus corrupting it. How to I avoid the RAM conflict?
One (ugly) way to fix this would be to just reserve the space in the memory table. The better way would be to track down where this is actually happening and fix it there.